Field Notes · An evolving learning library from Angier K9

Cases · Case

Nash

Who Nash is

As the trainers describe him

In for dog reactivity: he charges a dog 'like he's gonna hurt them', and that is why he is here.
On film

let's see how it goes we got another one because that's that's his uh yeah he's got reactivity

Watch at 12:25 ↗

But now he's making a significantly better choice Instead of charging a dog like he's gonna hurt them.

Watch at 13:17 ↗
Unused to busy places, excitable, and quick to go flat after pressure - which the trainer watches for and lifts with a strong release.
On film

the e-cog pressure there yeah yeah I have it on on a

Watch at 3:14 ↗

environment is for him and how unused to being in these kinds of environments he is from like

Watch at 3:24 ↗

peeing with nash yeah but so like if you uh one thing i'll point out is like with the e-collar

Watch at 4:25 ↗

there yes he was like and then when he came back to me he was a little suppressed um but

Watch at 4:33 ↗
Unsure moving into an area as children passed - submissive and a little nervous, as the second person reads it.
On film

just put in a bunch of verbal encouragement that's all because like at that point say that like i

Watch at 10:29 ↗
Smart, and handsome, by more than one handler.
On film

There you go. Smart dog.

Watch at 0:50 ↗

Nash is so handsome.

Watch at 6:01 ↗

The program, stage by stage

Intake, off camera

Late October 2025 (source: intake).

If the intake is his: a seven-year-old neutered pit mix with two repaired hind legs, a bite on another dog, strong reactivity to unfamiliar dogs and wildlife, no public life, and a sit - nothing else. The owner wanted walks, hikes and passing dogs without lunging.

A second dog at other dogs' sessions

Evan, a former staff member, takes him into the woods while another trainer works Astra on a long line. Nothing about his training is said; the trainer says he will upload Nash's videos.

On film

out here with astra carol howard johnson park out here nash just went off into the woods with evan

Watch at 0:04 ↗

I'm gonna upload Nash's videos

Watch at 7:33 ↗

The park choice pointTurning point

Shortly before 2025-12-10, at a busy public park.

On a prong collar and e-collar, with the level set higher than usual for an unfamiliar place, Nash works sit, recall, heel and let's go, and the trainer repeatedly lifts him out of the flat state that follows pressure with an excited release. Then he is given freedom near other dogs. He goes after one and gets a long, strong correction at the same level; he yelps, and the trainer says it probably hurt. He is released straight to the ball and sniffing, set free again as 'another choice point', and this time avoids a dog and leaves it alone. The trainer's argument: one big enforced consequence leaves an impression the dog does not repeat, and is kinder than correcting the next seventy reactions.

On film

yes okay it was very intelligible i was a i think you just went a little longer than i

Watch at 12:14 ↗

issues yep and actually that was the same level i did not turn it up okay so was him yelping and

Watch at 12:32 ↗

being overly dramatic no it probably hurt okay

Watch at 12:39 ↗

choice point okay be free go and i don't want him stuck to me there i want him free to make the

Watch at 12:58 ↗

Do you see the avoidance?

Watch at 15:06 ↗

Yeah, he left it alone.

Watch at 15:23 ↗

The next day, inside a store

The day after stage 3, by inference; part 2 uploaded 2025-12-10.

A staff member brings him out of the store while another works Josi. He recalls off a distraction without the collar being tapped, did well inside, and the staff put it down to 'a single event learning' the night before. They keep him and Josi apart because of her size, and hope to find a dog to test him on; the dogs inside had gone.

On film

sadly all the dogs that were in there earlier are gone ah i was really wanting to test him against

Watch at 1:48 ↗

all the dogs but yeah but i mean he did great with that yeah with everything else he's been

Watch at 1:53 ↗

doing really good yeah i think that uh the i think we might have had some a single event learning

Watch at 1:56 ↗

yesterday last night yes a life-changing experience

Watch at 2:03 ↗

Cited to another client

Milo and Josi's go-home lesson, mid-December 2025.

The trainer shows Milo and Josi's owner the video of Nash's correction as his example of single-event learning and says Nash did not do it again.

On film

somewhere where like the dog that was in that video that i showed you nash um where he kind

Watch at 2:22 ↗

that was after this because after this uh after that correction that i showed you he didn't do

Watch at 2:35 ↗

Skills

Passing other dogs (the reactivity)

At the startCharges a dog 'like he's gonna hurt them' when given freedom near one. Intake: bit a dog; reactive 'often' to new dogs (source: intake).
By the endAvoids and leaves a dog alone minutes later; a day later does well in a store; weeks later 'didn't do it again' by the trainer's account.

How it was taught

Freedom near dogs as a deliberate choice point; a charge earns one long, strong collar correction; freedom kept as long as he chooses well; release to ball and sniffing straight afterwards.

On film

And so as long as he make good choices like that, then he gets to retain the freedom

Watch at 13:41 ↗

And in my experience, doing it that way and going for pretty long creates a pretty dang close to single event learning.

Watch at 13:55 ↗

Recall and sit in a distracting place

At the startIntake: no recall; sit only with low distraction (source: intake).
By the endWorking on the collar at the park; recalls off a distraction without the collar next day.

How it was taught

'Nash, here' / 'Nash, sit' with collar pressure and 'nope', then a strong release.

On film

Nash, sit.

Watch at 0:47 ↗

off it looks like he tapped the collar maybe yeah no i didn't tap it oh you didn't tap it

Watch at 1:34 ↗

Heel and let's go

At the startIntake: doesn't know either (source: intake).

How it was taught

Heel with 'no' markers and release; let's go paired with a light leash or body cue when teaching it.

On film

So he got it that time because he stopped.

Watch at 9:29 ↗

If I wanna kinda communicate with the let's go, my preferred methodology is kinda,

Watch at 2:00 ↗

How the method adapted

Three choices in his one session are explained as being about him.

The release is used as mood repair: every aversive is followed at once by an excited 'okay', 'go go go', ball or sniffing, because he goes flat after pressure.

The stronger the release, the quicker he leaves that state; the correction is felt as temporary rather than as a broken relationship.

On film

the the power of like the really like solid like the better the the releases the better

Watch at 5:00 ↗

his demeanor changed come on go go go go good so that's why that's another thing the the stronger

Watch at 8:20 ↗

Well and see it as temporary yeah, and then and then instead of being like I

Watch at 8:37 ↗

Nervousness is answered with voice, not food.

A treat would teach him to come back to the handler for reassurance instead of going through a place with confidence.

On film

whipped out a treat or something yeah yeah because does that do that doesn't teach him that like oh

Watch at 10:35 ↗

yeah i know it's okay you can go right right that just makes him go okay yeah i'll come back to you

Watch at 10:41 ↗

One large consequence rather than many small ones, with the dog set free so the choice is his.

Stated as more humane than seventy small corrections, and as urgent because the trainer was about to go away.

On film

I feel like that's just like way more humane for the dog

Watch at 15:28 ↗

Imagine if I had, if I had left to get on the boat and that was still in him.

Watch at 15:46 ↗

Outcomes

What the trainers reported

Single-event learning: he did not repeat the charge.

Staff at the store the next day, and the trainer at the Milo go-home

On film

doing really good yeah i think that uh the i think we might have had some a single event learning

Watch at 1:56 ↗

that was after this because after this uh after that correction that i showed you he didn't do

Watch at 2:35 ↗

What the footage shows

Within minutes of the correction, freedom near another dog and avoidance, praised as a good choice.

On film

That's a good choice.

Watch at 15:13 ↗

A recall off a distraction without the collar the next day.

On film

off it looks like he tapped the collar maybe yeah no i didn't tap it oh you didn't tap it

Watch at 1:34 ↗
How it ended. Nash went home.

The ideas Nash's case runs on